MESON Chess Problem Database
Problem Display
PID: 19010 (1KN1R3/8/1P6/2pkB1nr/Q4pB1/pp2bq2/2P5/8 w - - 0 1)
Bull, Cecil Alfred Lucas
3rd Prize, Melbourne Leader, 1911
#2
8 + 9
SOLUTION
- SOUND
- Sets
- 1...Sh3
- 2.Bxf3#
- 1...Se4
- 2.c4#
- 1...Sf7
- 2.Bxf3#
- 1...Sh7
- 2.Bxf3#
- 1...Sh3
- Tries
- 1.Sd6?
- threat
- 2.Qa8#
- 2.c4#
- 1...bxc2
- 2.Qa8#
- 1...c4
- 2.Qxc4#
- 1...Qe2
- 2.Qa8#
- 1...Qe4
- 2.Qa8#
- 1...Qf1
- 2.Qa8#
- 1...Rh7
- 2.c4#
- 1...Se6!
- threat
- 1.Bxf3+?
- 1...Se4
- 2.Bxe4#
- 2.Qxe4#
- 2.c4#
- 1...Sxf3!
- 1...Se4
- 1.Ba1?
- threat
- 2.Re5#
- 2.Rd8#
- 2.c4#
- 1...Qxg4
- 2.Re5#
- 2.c4#
- 1...bxc2
- 2.Re5#
- 2.Rd8#
- 1...c4
- 2.Re5#
- 1...Qe2
- 2.Re5#
- 2.Rd8#
- 1...Qe4
- 2.Rd8#
- 1...Qf1
- 2.Re5#
- 2.Rd8#
- 1...Rh6
- 2.Re5#
- 2.c4#
- 1...Rh7
- 2.Re5#
- 2.c4#
- 1...Rh8
- 2.Re5#
- 2.c4#
- 1...Bd4
- 2.c4#
- 1...Sh3
- 2.Bxf3#
- 2.Be6#
- 2.Rd8#
- 2.c4#
- 1...Se4
- 2.Be6#
- 2.c4#
- 1...Se6
- 2.Bxf3#
- 2.Bxe6#
- 1...Sf7
- 2.Bxf3#
- 2.Be6#
- 2.c4#
- 1...Sh7
- 2.Bxf3#
- 2.Be6#
- 2.Rd8#
- 2.c4#
- 1...b2!
- threat
- 1.Bb2?
- threat
- 2.Re5#
- 2.Rd8#
- 2.c4#
- 1...Qxg4
- 2.Re5#
- 2.c4#
- 1...bxc2
- 2.Re5#
- 2.Rd8#
- 1...c4
- 2.Re5#
- 1...Qe2
- 2.Re5#
- 2.Rd8#
- 1...Qe4
- 2.Rd8#
- 1...Qf1
- 2.Re5#
- 2.Rd8#
- 1...Rh6
- 2.Re5#
- 2.c4#
- 1...Rh7
- 2.Re5#
- 2.c4#
- 1...Rh8
- 2.Re5#
- 2.c4#
- 1...Bd4
- 2.c4#
- 1...Sh3
- 2.Bxf3#
- 2.Be6#
- 2.Rd8#
- 2.c4#
- 1...Se4
- 2.Be6#
- 2.c4#
- 1...Se6
- 2.Bxf3#
- 2.Bxe6#
- 1...Sf7
- 2.Bxf3#
- 2.Be6#
- 2.c4#
- 1...Sh7
- 2.Bxf3#
- 2.Be6#
- 2.Rd8#
- 2.c4#
- 1...axb2!
- threat
- 1.Bc3?
- threat
- 2.Re5#
- 2.Rd8#
- 1...Qxg4
- 2.Re5#
- 1...c4
- 2.Re5#
- 1...Qe4
- 2.Rd8#
- 1...Rh6
- 2.Re5#
- 1...Rh7
- 2.Re5#
- 1...Rh8
- 2.Re5#
- 1...Sh3
- 2.Bxf3#
- 2.Be6#
- 2.Rd8#
- 1...Se4
- 2.Be6#
- 1...Se6
- 2.Bxf3#
- 2.Bxe6#
- 1...Sf7
- 2.Bxf3#
- 2.Be6#
- 1...Sh7
- 2.Bxf3#
- 2.Be6#
- 2.Rd8#
- 1...Bd4!
- threat
- 1.Bf6?
- threat
- 2.Re5#
- 2.Rd8#
- 2.c4#
- 1...Qxg4
- 2.Re5#
- 2.c4#
- 1...bxc2
- 2.Re5#
- 2.Rd8#
- 1...Qe2
- 2.Re5#
- 2.Rd8#
- 1...Qe4
- 2.Rd8#
- 1...Qf1
- 2.Re5#
- 2.Rd8#
- 1...Rh7
- 2.Re5#
- 2.c4#
- 1...Rh8
- 2.Re5#
- 2.c4#
- 1...Bd4
- 2.c4#
- 1...Sh3
- 2.Bxf3#
- 2.Be6#
- 2.Rd8#
- 2.c4#
- 1...Se4
- 2.Be6#
- 2.c4#
- 1...Se6
- 2.Bxf3#
- 2.Bxe6#
- 1...Sf7
- 2.Bxf3#
- 2.Be6#
- 2.c4#
- 1...Sh7
- 2.Bxf3#
- 2.Be6#
- 2.Rd8#
- 2.c4#
- 1...c4!
- threat
- 1.Bc7?
- threat
- 2.Se7#
- 2.Re5#
- 2.Rd8#
- 1...Qxg4
- 2.Re5#
- 1...Qe4
- 2.Rd8#
- 1...Rh6
- 2.Se7#
- 2.Re5#
- 1...Rh7
- 2.Re5#
- 1...Rh8
- 2.Se7#
- 2.Re5#
- 1...Bd4
- 2.c4#
- 1...Sh3
- 2.Se7#
- 2.Bxf3#
- 2.Be6#
- 2.Rd8#
- 1...Se4
- 2.Se7#
- 2.Be6#
- 1...Se6
- 2.Se7#
- 2.Bxf3#
- 2.Bxe6#
- 1...Sf7
- 2.Se7#
- 2.Bxf3#
- 2.Be6#
- 1...Sh7
- 2.Se7#
- 2.Bxf3#
- 2.Be6#
- 2.Rd8#
- 1...c4!
- threat
- 1.Bg7?
- threat
- 2.Re5#
- 2.Rd8#
- 2.c4#
- 1...Qxg4
- 2.Re5#
- 2.c4#
- 1...bxc2
- 2.Re5#
- 2.Rd8#
- 1...Qe2
- 2.Re5#
- 2.Rd8#
- 1...Qe4
- 2.Rd8#
- 1...Qf1
- 2.Re5#
- 2.Rd8#
- 1...Rh6
- 2.Re5#
- 2.c4#
- 1...Rh8
- 2.Re5#
- 2.c4#
- 1...Bd4
- 2.c4#
- 1...Sh3
- 2.Bxf3#
- 2.Be6#
- 2.Rd8#
- 2.c4#
- 1...Se4
- 2.Be6#
- 2.c4#
- 1...Se6
- 2.Bxf3#
- 2.Bxe6#
- 1...Sf7
- 2.Bxf3#
- 2.Be6#
- 2.c4#
- 1...Sh7
- 2.Bxf3#
- 2.Be6#
- 2.Rd8#
- 2.c4#
- 1...c4!
- threat
- 1.Qxb3+?
- 1...Ke4
- 2.Sd6#
- 2.Qd3#
- 1...Kc6
- 2.Sa7#
- 2.Se7#
- 1...c4!
- 1...Ke4
- 1.Qd7+?
- 1...Ke4
- 2.Bf5#
- 2.Qc6#
- 2.Qd3#
- 2.Qb7#
- 1...Kc4!
- 1...Ke4
- 1.Sd6?
- Keys
- 1.Bd4!
- threat
- 2.Re5#
- 1...Bxd4
- 2.c4#
- 1...cxd4
- 2.Qb5#
- 1...Se6
- 2.Bxf3#
- 1...c4
- 2.Qd7#
- 1...Qe4
- 2.Rd8#
- 1...Sh3
- 2.Bxf3#
- 1...Se4
- 2.Be6#
- 1...Sf7
- 2.Bxf3#
- 1...Sh7
- 2.Bxf3#
- threat
- 1.Bd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- S(h);N_GUARD::B(C),XQ(d)
- S(h);SBLOCK::P(A)
- Tries
- Try
- S(G);
- Threat
- DUALS(2)
- Vars
- P(b);XP(A)::QAB(B)
- P(f);::QAB1(B),XP(f)
- Q(d);::QAB(B)
- R(i);::P(A)
- Refutation
- S(h);
- Try
- B(C);CHECK,XQ(d)
- Refutation
- S(h);XB(C)
- Try
- B(D);
- Threat
- DUALS(3)
- Vars
- P(f);::R1(H)
- Q(d);::R(H)
- B(c);::P(A)
- Refutation
- P(b);
- Try
- B(D);
- Threat
- DUALS(3)
- Vars
- P(f);::R1(H)
- Q(d);::R(H)
- B(c);::P(A)
- Refutation
- P(a);XB(D)
- Try
- B(D);
- Threat
- DUALS(2)
- Vars
- Q(d);XB(C)::R1(H)
- P(f);::R1(H)
- Q(d);::R(H)
- R(i);::R1(H)
- S(h);N_GUARD::B(C)
- Refutation
- B(c);
- Try
- B(D);
- Threat
- DUALS(3)
- Vars
- Q(d);::R(H)
- B(c);::P(A)
- Refutation
- P(f);
- Try
- B(D);
- Threat
- DUALS(3)
- Vars
- Q(d);XB(C)::R1(H)
- Q(d);::R(H)
- R(i);::R1(H)
- B(c);SBLOCK::P(A)
- Refutation
- P(f);
- Try
- B(D);
- Threat
- DUALS(3)
- Vars
- Q(d);::R(H)
- B(c);::P(A)
- Refutation
- P(f);
- Try
- Q(B);CHECK,XP(b)
- Refutation
- P(f);P_SPINP(f)
- Try
- Q(B);CHECK
- Refutation
- K(g);S_FLIGHT
- Try
- Actual
- B(D);
- Threat
- R1(H)
- Vars
- B(c);SBLOCK,XB(D)::P(A)
- P(f);OGATEB,SBLOCK,XB(D)::QAR2(B)
- S(h);N_GUARD::B(C),XQ(d)
- P(f);SBLOCK::QAR2(B)
- Q(d);SBLOCK::R(H)
- S(h);N_GUARD,SBLOCK::B(C)
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